Library
From case studies, to white papers, technical articles, FAQs, potential problems and creative solutions
From the very general to the highly specific and everything in between — developed by our technical experts and talent across a host of industries, our Library is the place where you will find all you need to ensure success. It’s unique and part of the Croll Reynolds’ value proposition: an unwavering commitment to ensuring that your plant runs. And stays running. What’s best, we’re constantly adding new materials.
Corporate Brochures (all downloadable pdfs)
Product Bulletins (all downloadable pdfs)
Multilingual Resources
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Ejector Technology:
Operation and Design Fundamentals
Videos/Infographics
Vacuum System with Baros
A Hybrid Steam Jet Vacuum System with Barometric (Direct Contact) condenser (Heat exchanger) integrates advanced Steam Jet Ejector vacuum technology with Liquid Ring Vacuum Pumps (LRVP), a specialized control system designed to optimize performance and utility consumption to deliver the best energy efficiency.
This system is commonly used in industrial processes requiring precise pressure control and efficient vacuum operations. By combining Ejector technology with a LRVP control features, such as real-time monitoring and automated adjustments, the system enhances reliability, energy efficiency, and overall operational effectiveness. These vacuum systems are ideal for industries like Edible oil, food processing, and chemical processing, where precise vacuum conditions are essential for product quality and process stability.
Hybrid Vacuum Systems
Rotajector systems are high-efficiency combination ejector-liquid ring vacuum pump systems wherein the liquid ring pump replaces the final ejector stage of the system to reduce steam consumption.
Rotajectors are highly reliable, with only one moving part. They handle a wide range of gasses,vapors, particulates and contaminants without the need for filters separators or traps.
The process gases to be handled by the Rotajector system are drawn in through the suction inlet of the first stage ejector and compressed by the ejector stage(s) to an inter-stage condenser.
The interstage condenser cools the gases and condenses the vapors, reducing the load to be handled by the liquid ring vacuum pump. The liquid ring vacuum pump serves as the final compression stage. The condensate from the interstage condenser drains directly into the pump suction port. Pressurized steam is required for operation of the ejector stages and a continuous flow of sealant water and electrical power is required for operation of the liquid ring pump.
The liquid ring vacuum pump is designed to replace replace the final ejector stage(s), thus reducing steam consumption.
Rotajectors can be installed at ground level eliminating the need for barometric condensate piping.
Rotajectors can be operated using low pressure steam, eliminating the need for high-pressure boilers.
Each rotajector system is custom designed, with the liquid ring vacuum pump size optimized to match the ejector design.
To learn more about high-efficiency rotajector systems, and to discuss your specific process or application, contact the Croll Reynolds vacuum engineer in your area or call our US offices to speak with our design engineers.
Steam Ejectors
Steam ejectors use a motivating fluid and pressure-to-velocity energy conversion to create vacuum. Nozzles convert high-pressure steam to high-velocity steam in the mixing chamber to create a low-pressure region.
As the steam and entrained air travels down the diffuser, kinetic energy is lost and pressure increases again. Steam ejectors handle high volumes of gasses, including wet, corrosive, or particulate-laden vapors, and operate in the rough or medium vacuum range, with operating pressures to 0.003 torr. Multiple-nozzle designs, a Croll-Reynolds specialty, improve efficiency. Steam ejectors mount in any orientation and have a low maintenance design with no moving parts. Multi-stage systems offer improved vacuum, and can contain up to six ejector stages. The number of ejectors is determined by the level of vacuum required. Condensers are included to remove steam from the system and reduce load on later stages.
Shell and tube condensers, such as the one shown here, cool the steam down using arrays of cooling tubes. Condensate is drained from the system, allowing more steam to be added at the next ejector. Each system is a custom design and multiple condensers can be used as well. Steam ejector systems provide the lowest capital costs among vacuum process pumps.
To learn more about steam ejector systems and to discuss your specific vacuum process or application, contact Croll-Reynolds or visit www.croll.com.
Thermocompressors
Croll Reynolds Thermocompressors are designed to recycle heat energy by capturing and recompressing waste steam for use elsewhere.
Thermocompressors, like ejectors, have no moving parts. The mechanical design consists of a steam chest, nozzle holder, nozzles, and diffuser.
The thermocompressor uses high pressure steam, as a motive fluid, which enters the steam chest and expands through the nozzle.
The high-velocity steam then entrains the waste steam, into a mixing chamber where the fluids are combined.
The mixed fluids are then recompressed to an immediate pressure through the diffuser, which acts as a nozzle in reverse, reconverting velocity energy to pressure energy.
Thermocompressors are designed for applications in the food, petroleum, chemical, power, and paper industries. Thermal recompression is typically applied in the dairy and juice industries to recapture and reuse steam from evaporators during the concentration process.
All Croll Reynolds thermocompressors are custom designed and performance tested to meet our client’s exacting specifications.
To learn more about Croll Reynolds thermocompressor heat recovery systems, and to discuss your specific process or application, contact the Croll Reynolds vacuum engineer in your area or call our US offices to speak with our design engineers.
Liquid Ring Vacuum Pump
The Croll Liquid Ring Vacuum Pump is a highly engineered vacuum system designed to handle industrial processes that require efficient vacuum solutions.
It operates using a liquid ring, which ensures smooth and reliable performance in various demanding applications. These pumps are widely used for gas handling in industries such as chemical, petrochemical, and food processing, where reliability and energy efficiency are key. Croll Reynolds has a long history of designing and manufacturing such systems, ensuring they meet rigorous quality standards and perform optimally under tough industrial conditions.
Steam Ejector
Steam jet ejectors offer a simple, reliable, low-cost way to produce vacuum. They are especially effective in the chemical industry where an on-site supply of the high-pressure motive gas is available.
Ejectors are considered an alternative to mechanical vacuum pumps for a number of reasons:
- No source of power is required other than the motive gas;
- Because they have no moving parts, they are reliable vacuum producers;
- They are easy to install, operate and maintain.
Case Studies
For your vacuum system requirements, contact our US headquarters in Parsippany or our representative offices in your area.
Frequently Asked Questions
A global frontier & well-known engineering firm, headquartered in the United States, with over a century experience, Croll Reynolds specializes in the development and production of cutting-edge process-steam vacuum systems. We have been providing top-notch solutions to a variety of sectors around the globe since 1917. Steam jet ejectors, process-steam vacuum systems, gas jet ejectors, hybrid vacuum systems, vacuum pump systems, Desuperheater, Jet Heater, Jet Mixer (Circulator), and a wide variety of heat transfer products (such as Surface type & Direct contact type condensers) are among our specialties; each is designed to satisfy the exacting requirements of vital industrial operations, including food processing, power generating, chemical, and pharmaceutical. After more than a century of invention, Croll Reynolds is still the industry leader in engineering brilliance, efficiency, and dependability. Please visit our homepage to explore our company and what we do (https://croll.com/).
Delivering an extensive array of high-performance vacuum and heat transfer systems that are specially designed to satisfy the requirements of various industrial applications is our area of expertise at Croll Reynolds. Our range of products consists of:
- Steam jet ejectors (complete systems, assembled with valves & instruments can be offered)
- Single & multi-stage steam ejector vacuum system (up to 6 stages complete system, assembled with any level of automation, valves, instrumentation can be offered)
- Liquid jet ejectors (liquid motivated & suction could be solids, slush, liquid, or gases)
- Gas jet ejectors (gas motivated & suction could be any gases)
- Hybrid ejector vacuum systems (ejector-mechanical vacuum pump or ejector-liquid ring combinations)
- Desuperheaters with precise engineering (steam atomizing, double venturi, full venturi, fixed nozzle, & venturi types can be offered)
- Process-powered vacuum system for all processes (This system prevents any steam or water contamination)
- Refinery vacuum systems (complete system design, sizing and selection of valves & instrument, full or partial assembly, with design of 3-phase separator)
- Vacuum systems for power plants (ejector systems or hybrid systems, assembled with valves & instruments to achieve any level of automation)
- Flare gas recompression jet ejector system (loose gas ejectors or complete system with pump, separator, valves & instruments can be offered)
- Systems for steam recompression, Thermocompressor or steam jet Boosters
- Heat Exchangers (surface type, direct contact type, hairpin, coil type, etc.)
- Jet mixers & Circulators (aeration, tank mixing, agitation, etc.)
- Sophisticated vacuum chillers (powered by steam ejectors and propriety chiller tank & inline direct contact condensers)
Regardless of your industry—power generation, refinery, chemical processing, or food production, our products are made to provide dependable performance, effective use of energy, and long-term value. For more information about our products you can refer to Ejector & Vacuum System Products page (https://croll.com/products/).
Croll Reynolds provides powerful vacuum and processing equipment for a wide range of industries. The following industries trust our engineered solutions:
- Chemical processing and petrochemicals: promoting secure and effective operations
- Edible oil and oleochemicals plants: promoting efficient bleaching, deodorizing, drying, etc.
- Refineries and vacuum distillation: promoting low cost and efficient solution for vacuum distillation
- Power generation, encompassing nuclear, conventional, and renewable energy facilities
- Processing Food and Beverage: Improving Productivity and Hygiene
- Manufacturing pharmaceuticals: guaranteeing product conformity and purity
- For applications needing a high degree of dependability, metallurgy and metal processing
- Enhancing the drying and dewatering procedures for pulp and paper production
- Wastewater and environmental treatment: promoting sustainability and reducing emissions
We have experience with both conventional and specially designed solutions that meet the specific needs of the industry. To learn more about how we may help with your application, visit our Industries page (https://croll.com/industries-and-applications/).
Croll Reynolds takes pride in designing, engineering, building, and testing Croll Reynolds’ equipment in the United States. Our in-house production method guarantees outstanding quality control, reliable performance, and conformity to the most stringent industry requirements. Additionally, our U.S.-based production enables faster turnaround times, attentive customer support, and products that showcase more than a century of technical innovation and quality. We also have international presence with manufacturing facilities and partner shops in countries like India and China when faster delivery and more competitive commercial offer is required, visit our “contact-us” page for global operations (https://croll.com/contact-us/).
Yes. Our specialty at Croll Reynolds is providing completely customized solutions that are suited to your unique performance, size, and process needs. Precision modeling, cutting-edge simulation technologies, and ideas from our own research and development team are used to build each system from the bottom up. This guarantees that, regardless of the complexity of your application, every unit not only meets but is beyond expectations in terms of efficiency, durability, and dependability. By going to our website’s contact page, “Request a Quote” area (https://croll.com/contact-us/request-a-quote/), you can quickly get a quote for your customized solution.
Of course! By going to our website’s contact page, “Request a Quote” area (https://croll.com/contact-us/request-a-quote/), you can quickly get a quote. Simply include the most important information about your project, equipment requirements, or application in the form. Following submission, your information will be thoroughly examined by our skilled engineering team, which will then swiftly provide you with a proposal that is specific to your needs. It’s a quick and effective approach to begin using Croll.
For all Croll Reynolds goods, we are pleased to provide thorough post-purchase assistance. We offer professional technical support, advice on regular maintenance, and warranty help to guarantee optimal efficiency over time. Through our website’s “Ask a CR Engineer” or “Service Request” (https://croll.com/contact-us/technical-support/) function, consumers may easily file a service request or speak with our technical staff for ongoing help.
Of course. To identify inefficiencies as well as gaps, our skilled professionals at Croll Reynolds are skilled in auditing and evaluating existing vacuum systems. We provide customized optimization solutions, such as component improvements, retrofitting, and system upgrades. We can change your present configuration to provide long-term value and improved outcomes, regardless of your objectives—whether they are to improve energy efficiency, increase dependability, or conform to revised industry requirements. For submitting your inquiry or if you have any technical questions, you can submit your request to (https://croll.com/contact-us/request-a-quote/)
Yes, Croll Reynolds offers a wide variety of TEMA type & non-TEMA type (Surface, Shell & Tube, Direct contact, Barometric, Helical-Coil type, Hairpin, Jacketed pipe, etc.) heat exchangers. For submitting your inquiry or if you have any technical questions, you can submit your request to (https://croll.com/contact-us/request-a-quote/)
Croll Reynolds is unique because it combines more than a century of technical experience with a science based back by continuous testing of our equipment approach to our vacuum system design and performance. In contrast to many manufacturers, we have full-house R&D and quality control skills, which enable us to provide dependable, tailored solutions for even the most demanding industrial settings.
Some of the main benefits are:
- A global network of sales, support, and service facilities for quick response and customer service
- A track record of success in crucial sectors
- Strict internal procedures for simulation, testing, and validation
- Systems that are entirely customized to meet the most challenging operational needs
- Over 105 years of expertise and testing data
Our extensive industry experience and commitment to innovation guarantee that every Croll Reynolds system, wherever it operates, satisfies the highest requirements for performance, efficiency, and dependability. For more information about history of our company please visit (https://croll.com/about-us/)
With our main office and state-of-the-art manufacturing facilities located in the New Jersey United States, Croll Reynolds is glad to have its headquarters there. We also have specialized sales and service offices throughout Asia, the Middle East, Europe, and South America to better support our international customers. No matter where our clients are situated, our global presence guarantees prompt assistance and knowledgeable solutions. For more details about our offices and how to contact us please visit (https://croll.com/contact-us/)
The ISO 9001 Quality Management System is used in the production of all Croll Reynolds products. This widely accepted accreditation attests to the fact that our design, production, and testing procedures constantly satisfy exacting requirements for dependability, quality, and safety. It also shows our continued dedication to client satisfaction and constant development at every level of production.
Single or multi-stage ejectors are sophisticated vacuum-producing static equipment that effectively remove air, vapors, and other gases from a system by employing high-pressure steam or gas. It is very efficient at producing deep vacuum levels since it operates in phases to reach progressively lower pressures. In demanding industrial applications where dependable and effective vacuum operation is crucial, such as power plants, petrochemical refineries, pharmaceutical production, and chemical processing, multi-stage ejectors are frequently utilized. For more information you can also refer to our “steam jet ejector vacuum systems page ” (https://croll.com/steam-jet-ejector-vacuum-system/)
Mechanical vacuum methods, such as liquid ring vacuum pumps, and rotary lobe blower are combined with traditional steam ejector innovations in hybrid arrangement to improve overall efficiency and conserve energy. Hybrid ejectors can keep steady vacuum levels, manage varying process loads more skillfully, and drastically cut down on steam use by fusing the advantages of both technologies. Because of this, they are perfect for applications that need stable operation and reduce running costs in a range of scenarios. For more information you can also refer to our “Hybrid ejector vacuum system” page (https://croll.com/hybrid-ejector-vacuum-system/)
Yes, Croll Reynolds offers variety of Circulators and jet-mixers that are submerged in a tank fluid to perform blending, aeration, tank mixing, agitation actions in open or closed tanks. For more information you can refer to our “Circulator & Jet Mixer” page (https://croll.com/circulators/)
Yes, Croll Reynolds offers variety of Circulators and jet-mixers that are submerged in a tank fluid to perform blending, aeration, tank mixing, agitation actions in open or closed tanks. For more information you can refer to our “Circulator & Jet Mixer” page (https://croll.com/circulators/)
Yes, Croll Reynolds offers Jet Heaters that is not an ejector at all, even though it may resemble one externally. Jet heaters provide no pressure increase across the unit and are used to heat a variety of liquids using steam. For more information you can refer to our “Jet Heater” page (https://croll.com/jet-heater/)
Toggle ContentOur team of engineers may be readily contacted by completing the “Ask an Engineer” form found on our Contact page and Technical Support page (https://croll.com/contact-us/technical-support/). Another option is to give us a call at the number provided on the website (https://croll.com/contact-us/). For technical inquiries, whether you’re planning a new project, need assistance for an existing system, or need specific advice, our skilled experts are available and quick to answer.
Toggle ContentTo be informed about the most recent advancements, product releases, and engineering updates from Croll Reynolds, just sign up for our newsletter, which can be found at the bottom of our website. You will receive industry-specific technical articles, real-world case studies, and exclusive insights delivered directly to your mailbox. Croll Reynolds can help you stay informed and on top of trends. You can also visit our News & Articles page (https://croll.com/news-and-articles/)
